.null{
    height: 30px;
}
body{
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}
.cards {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-align: center;
    align-items: center;
    padding-top: 40px;
    padding-bottom: 40px;
    justify-content: center;
    height: 100%;
}
nav{
    flex: 0 0 auto;
}
footer{
    flex: 0 0 auto;
}
main{
    flex: 1 0 auto;

}
.footerp{
    margin-bottom: 0px;
}
main table{
    font-size: 1.1em;

}
main table tbody td{
    padding-top: 2px;
}